-------
REPORT
ON
MGONGA LAi€
KWDIYQHI COUNTY
MINNESOTA
EPA REGION V
WORKING PAPER .Jo, 133
WITH THE COOPERATION OF THE
MINNESOTA POLLUTION CONTROL AGENCY
AND THE
MINNESOTA NATIONAL GUARD
NOVBBER, 1974
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1
CONTENTS
p- -g
Foreword ii
List of Minnesota Study Lakes iv, v
Lake and Drainage Area Map vi
Sections
I. Conclusions I
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Summary 4
IV. Nutrient Loadings 8
V. Literature Reviewed 13
VI. Appendices 14
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11
FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to fresh water lakes and
reservoirs.
OBJECTIVES
The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
and impact on selected freshwater lakes as a basis for formulating
comprehensive and coordinated national, regional, and state management
practices relating to point-source discharge reduction and non-point
source pollution abatement in lake watersheds.
ANALYTIC APPROACH
The mathematical and statistical procedures selected for the
Survey’s eutrophication analysis are based on related concepts that:
a. A generalized representation or model relating
sources, concentrations, and impacts can be constructed.
b. By applying measurements of relevant parameters
associated with lake degradation, the generalized model
can be transformed into an operational representation of
a lake, its drainage basin, and related nutrients.
c. With such a transformation, an assessment of the
potential for eutrophication control can be made.
LAKE ANALYSIS
In this report, the first stage of evaluation of lake and water-
shed data collected from the study lake and its drainage basin is
documented. The report is formatted to provide state environmental
agencies with specific information for basin planning [ 3O3(e)], water
quality criteria/standards review [ 3O3(c)], clean lakes [ 3l4(a,b)],
and water quality monitoring [ lO6 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
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111
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation’s
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the National Eutrophication Survey (Office of
Research & Development, U. S. Environmental Protection Agency)
expresses sincere appreciation to the Minnesota Pollution Control
Agency for professional involvement and to the Minnesota National
Guard for conducting the tributary sampling phase of the Survey.
Grant J. Merritt, Director of the Minnesota Pollution Control
Agency, John F. McGuire, Chief, and Joel G. Schilling, Biologist,
of the Section of Surface and Groundwater, Division of Water Quality,
provided invaluable lake documentation and counsel during the course
of the Survey; and the staff of the Section of Municipal Works, Divi-
sion of Water Quality, were most helpful in identifying point sources
and soliciting municipal participation in the Survey.
Major General Chester J. Moeglein, the Adjutant General of
Minnesota, and Project Officer Major Adrian Be] trand, who directed
the volunteer efforts of the Minnesota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.
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iv
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF MINNESOTA
LAKE NAME COUNTY
Albert Lea Freeborn
Andrusia Beltrami
Badger Polk
Bartlett Koochiching
Bear Freeborn
Bemidji Beltrami
Big Stearns
Big Stone Big Stone, MN; Roberts,
Grant, SD
Birch Cass
Blackduck Beltrami
Blackhoof Crow Wing
Budd Martin
Buffalo Wright
Calhoun Flennepin
Carlos Douglas
Carrigan Wright
Cass Beltrami, Cass
Clearwater Wright, Stearns
Cokato Wright
Cranberry Crow Wing
Darling Douglas
Elbow St. Louis
Ernbarass St. Louis
Fall Lake
Forest Washington
Green Kandiyohi
Gull Cass
Heron Jackson
Leech Cass
Le Home Dieu Douglas
Lily Blue Earth
Little Grant
Lost St. Louis
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V
LAKE NAME
COUNTY
Madi son
Mal medal
Mashkenode
McQuade
Mi nnetonka
Mi nnewas ka
Mud
Nest
Pelican
Pepin
Rabbit
Sakatah
Shagawa
Silver
Six Mile
Spring
St. Croix
St. Louis Bay
Superior Bay
Swan
Trace
Trout
Wagonga
Wal lmark
White Bear
Winona
Wo 1 f
Woodcock
Zumbro
Blue Earth
Pope
St. Louis
St. Louis
Hennepi n
Pope
I ta s ca
Kandiyohi
St. Louis
Goodhue, Wabasha, MN;
Pierce, Pepin, WI
Crow Wing
Le Sueur
St. Louis
McLeod
St. Louis
Washington,
Washington,
Pierce, WI
St. Louis,
St. Louis,
Itasca
Todd
Itasca
Kandiyoh i
Chisago
Washi ngton
Dougi as
Beltrami, Hubbard
Kandiyohi
Olmstead, Wabasha
Dakota
MN; St. Croix,
MN; Douglas, WI
MN; Douglas, WI
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vi
Map Location
:
(F
Kond iyoh
1(
2
WAGONGA LAKE
® Tributary Sampling Site
X Lake Sampling Site
Sewage Treatment Facility
r Direct Drainage Area Limits
rndirect Drainage Area
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WAGONGA LAKE
STORET NO. 27B1
I. CONCLUSIONS
A. Trophic Condition:
Survey data and the records of others show that Wagonga
Lake is eutrophic. Survey limnologists noted the lake had
a “pea—soup appearance at all sampling visits and reported
an “enormous” bloom decomposing in late August, 1972.
Of the 60 Minnesota lakes sampled in the fall when essen-
tially all were well-mixed, 54 had less mean total phosphorus,
and dissolved phosphorus, and 43 had less mean inorganic nitro-
gen. For all 80 lakes sampled, 87% had less mean chlorophyll a,
and 87% had greater mean Secchi disc transparency.
B. Rate—Limiting Nutrient:
A significant loss of nutrients occurred in the algal
assay sample between the time of collection and the begin-
ning of the assay, and the results are not reliable. How-
ever, the lake data show nitrogen limitation at all sampling
times (N/P ratios were less than 1/1 on all occasions).
C. Nutrient Controllability:
1. Point sources——During the sampling year, it is calculated
that Wagonga Lake received a total phosphorus load at a rate about
20 times the rate proposed by Vollenweider (in press) as “dangerous”;
i.e., a eutrophic rate (see page 12). Of this load, it is estimated
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2
that the City of Wilimar contributed about 92% and the Village
of Kandiyohi about 1%.
It is calculated that even complete removal of phosphorus
at the indicated point sources would result in a loading rate
of 2.2 lbs/acre/yr or 0.25 g/m 2 /yr-—a rate still in excess of
the eutrophic rate of 0.20 g/m 2 /yr. However, if such a degree
of removal can be achieved, it is concluded that the incidence
and severity of algal bloon in Wagonga Lake would be reduced;
arid, more important, the occurrence of toxic algal blooms in
downstream Big Kandiyohi Lake (Anonymous, 1971) would be reduced.
2. Non—point sources--The nutrient loads attributed to County
Ditch 23—A were estimated since point-source loads exceeded those
measured in the Ditch. For this reason, calculated nutrient
exports would be of little significance.
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3
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS
A. Lake Morphometry*:
1. Surface area: 1,617 acres.
2. Mean depth: 4.2 feet.
3. Maximum depth: 15 feet.
4. Volume: 6,791 acre/feet.
5. Mean hydraulic retention time: 1.4 years.
B. Tributary and Outlet:
(See Appendix A for flow data)
1. Tributaries -
Name Drainage areat Mean flowt
County Ditch 23-A 17.2 mi 2 4.5 cfs
Minor tributaries & 2
irriiiediate drainage - 5.7 mi 2.3 cfs
Totals 22.9 mi 2 6.8 cfs
2. Outlet -
(to Little Kandiyohi Lake) 25.5 mi 2 tt 6.8 cfs
C. precipitationtif:
1. Year of sampling: 27.0 inches.
2. Mean annual : 24.5 inches.
* DNR lake survey map (1966); mean depth by random dot method.
t Drainage areas are accurate within ±5%; mean daily flows are accurate
within ±10%; and ungaged flows are accurate within ±10 to 25% for
drainage areas greater than 10 mi 2 .
1-I- Includes area of lake.
ttl- See Working Paper No. 1 , “Survey Methods”.
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4
II I. LAKE WATER QUALITY SUMMARY
Wagonga Lake was sampled three times during the open—water season
of 1972 by means of a pontoon—equipped Huey helicopter. Each time,
samples for physical and chemical parameters were collected from one
or more depths at three stations on the lake (see map, page vi). Dur-
ing each visit, a single depth-integrated (near bottom to surface)
sample was composited from the stations for phytoplankton identifica-
tion and enumeration; and during the last visit, a single five-gallon
depth—integrated sample was composited for algal assays. Also each
time, a depth—integrated sample was collected from each of the stations
for chlorophyll a analysis. The maximum depths sampled were 4 feet at
station 1, 8 feet at station 2, and 5 feet at station 3.
The results obtained are presented in full in Appendix B, and the
data for the fall sampling period, when the lake was essentially well—
mixed, are sumarized below. Note, however, the Secchi disc summary
is based on all values.
For differences In the various parameters at the other sampling
times, refer to Appendix B.
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5
A. Physical and chemical characteristics:
FALL VALUES
(10/25/72)
Parameter Minimum Mean Median Maximum
Temperature (Cent.) 4 5 4.6 4.5 4.8
Dissolved oxygen (mg/i) 10.4 11.0 11.2 11.4
Conductivity (pmhos) 825 838 838 850
pH (units) 9.1 9.2 9.2 9.2
Alkalinity (mg/i) 210 219 220 220
Total P (mg/i) 1.000 1.093 1.090 1.200
Dissolved P (mg/i) 0.770 0.834 0.820 0.930
NO + NO (mg/i) 0.140 0.233 0.200 0.370
Am onia mg/l) 0.270 0.369 0.330 0.510
ALL VALUES
Secchi disc (inches) 6 12 12 15
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6
B. Biological characteristics:
1. Phytoplankton -
Sampling Dominant Number
Date Genera per ml
07/02/72 1 . Oscillatoria 42,727
2. Anabaena 8,333
3. Melosira 6,364
4. Marssoniella 1 ,060
5. Stephanodiscus 758
Other genera 1 ,667
Total 60,909
08/31/72 1. Oscillatoria 33,997
2. Lyngbya 13,020
3. Anabaena 9,042
4. Melosira 2,893
5. Microcystis 2,712
Other genera 7,594
Total 69,258
10/25/72 1 . Oscillatoria 20,226
2. Flagellates 2,105
3. flelosira 1 ,353
4. Dinobryon 902
5. Scenedesmus 677
Other genera 2,030
Total 27,293
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7
2. Chlorophyll a-
(Because of instrumentation problems during the 1972 sampling,
the following values may be in error by plus or minus 20 percent.)
Sampling Station Chlorophyll a
Date Number - ( j ig/i )
07/02/72 01 64.9
02 179.6
03 153.9
08/31/72 01 44.4
02 24.7
03 29.8
10/25/72 01 196.6
02 53.8
03 102.5
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8
IV. NUTRIENT LOADINGS
(See Appendix C for data)
For the determination of nutrient loadings, the Minnesota National
Guard collected a monthly near—surface grab sample from each of the
tributary sites indicated on the map (page vi) except for the high run-
off month of May when two samples were collected. Sampling was begun
in October, 1972, and was completed in September, 1973.
Through an interagency agreement, stream flow estimates for the
year of sampling and a “normalized” or average year were provided by
the Minnesota District Office of the U.S. Geological Survey for the
tributary sites nearest the lake.
In this report, nutrient loads for sampled tributaries were deter-
mined by using a modification of a U.S. Geological Survey computer pro-
gram for calculating stream loadings. Nutrient loadings for unsampled
“minor tributaries and immediate drainage” (“ZZ” of U.S.G.S.) were calcu-
lated using the mean concentrations in the Crow River at station B-i and
ZZ flows.
The operator of the Willrnar wastewater treatment plant provided monthly
effluent samples and corresponding flow data; however, the Village of
Kandiyohi declined to participate in the Survey, and nutrient loads from
that source were estimated at 2.5 lbs P and 7.5 lbs N/capita/year.
During the sampling year, the nutrient loads measured at the Willmar
plant exceeded the amounts measured in the inlet stream at station D—1.
However, in this report it is assumed that all of the Willmar loads reached
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9
the lake; and in the following loading tables, the areal or non-point-
source loads attributed to County Ditch 23-A were calculated by using
mean concentrations in the Crow River at station B—i and flows at D-l
minus the mean Wilirnar plant flows (3.4 cfs).
A. Waste Sources:
1. Known municipal -
Pop.
Se rved*
12,869
295
2. Known industrial - None
Treatment
Act, sludge
Trickling
filter
* AnonynDus, 1973.
** Estimated at 100 gal/capita/day.
Na me
Wilimar
Kandiyoh i
Mean Receiving
Flow (mgdj Water
2.218 County Ditch 23-A
0.029** Crow River
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10
B. Annual Total Phosphorus Loading — Average Year:
1 . Inputs —
lbsP/ %of
Source yr total
a. Tributaries (non—point load) -
County Ditch 23-A 1,110 1.9
b, Minor tributaries & immediate
drainage (non-point load) — 2,270 3.9
c. Known municipal -
Wilimar 53,280 92.4
Kandiyohi 740 1.3
d. Septic tanks - Unknown —
e. Known industrial — None - —
f. Direct precipitation* - 250 0.4
Total 57,650 100.0
2. Outputs —
Lake outlet (to Little Kandiyohi
Lake) 24,690
3. Net annual P accumulation - 32,960 pounds
* See Working Paper No. 1.
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11
C. Annual Total Nitrogen Loading - Average Year:
1 . Inputs —
lbsN/ %of
Source yr total
a. Tributaries (non—point load) —
County Ditch 23—A 7,360 3.2
b. Minor tributaries & iniiiediate
drainage (non—point load) — 14,970 6.5
c. Known municipal —
Wilimar 171 ,240 74.1
Kandlyohi 22,010 9.5
d. Septic tanks - Unknown —
e. Known industrial - None - -
f. Direct precipitation* - 15,580 6.7
Total 231,160 100.0
2. Outputs —
Lake outlet (to Little Kandlyohi
Lake) 76,820
3. Net annual N accumulation — 154,340 pounds
* See Working Paper No. 1.
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12
D. Yearly Loading Rates:
In the following table, the existing phosphorus loading
rates are compared to those proposed by Vollenweider (in press).
Essentially, his “dangerous’ rate is the rate at which the
receiving waters would become eutrophic or remain eutrophic;
his “permissible” rate is that which would result in the
receiving water remaining oligotrophic or becoming oligo-
trophic if morphometry permitted. A mesotrophic rate would
be considered one between “dangerous” and “permissible”.
Total Phosphorus Total Nitrogen
Units Total Accumulated Total Accumulated
1bs/acr /yr 35.7 20.4 143.0 95.4
grans/m /yr 4.00 2.28 16.0 10.7
Volle weider loading rates for phosphorus
(g/m /yr) based on mean depth and mean
hydraulic retention time of Wagonga Lake:
“Dangerous” (eutrophic rate) 0.20
“Permissible” (oligotrophic rate) 0.10
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13
V. LITERATURE REVIEWED
Anonymous, 1971. Report on investigation of water quality of
Wagonga and Big Kandlyohi lakes system, Kandiyohi County. MPCA,
Minneapolis.
Anonymous, 1973. Wastewater disposal facilities inventory. MPCA,
Minneapolis.
Schilling, Joel, 1974. Personal communication (lake map). MPCA,
Minneapolis.
Vollenweider, Richard A., (in press). Input—output models. Schweiz.
A. Hydrol.
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VII. APPENDICES
APPENDIX A
TRIBUTARY FLOW DATA
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t,fl3’pT Py FLOW INFOQMAII)N FOP MINNESOTA 10/30/14
LA(F COlE 7111 SAU,U’JflA LaKF
TOTAL 0RA1\. c€ 6 A O LA6 ‘5.50
S(JW -IJkAINA I,f NUMMALIZEO FLOWS
IP IRtITAJY A°F4 JAi r n’ ‘IA” AP.1 MAY JUN JUL AUG SE° OCT NOV DEC MEAN
?1R IA I 75.6) I, ? l.a’ 4•Q3 12.97 16.12 19.05 10.23 4.48 3.81 2.90 2.21 1.71 6.83
77930 ) 1 7.’ O )•QI, 0.Q6 .3.1’ 9.41 1o.0 12.80 6.12 2.80 2.55 1.83 1.36 1.20 4.53
77 13?? U. 7S 0 .11 0.54 2.29 1.8? 5.30 6.20 3.30 1.37 1.38 0.93 0.65 0.80 2.30
SUMMARY
TOTAL fl’-lAINAGF AR7A O F LAKE = 25.50 TOTAL FLOW IN = 81.76
5LJM OF s1J;—OSAI’-JA(.t: Al-FAS 25.45 TOTAL FLOW OUT = 81.77
MEA J MONTNLY FL3wS A’JL) i)AILY FLOIS
TPIPUTA”Y -4ONT-4 ftA” ‘lEAN FLO4 nAY FLO4 OAt FLOW OAt FLOW
77 . IAI In 77 1 •74 15 7.30
II 1’ 5 8.70
37 1’ c.cc 9 “.60
73 4•(-9 6 “.10
7 73 3.P4 4 4.10
3 13 18.A0 10 11.0 0
4 73 2 7. () 1 23.03
5 73 I .-’3 “ 1’.OU 19 17.00
6 71 1 .’( It, 15.00
1 73 ?.‘3 14 3.40
‘4 73 3.40 II 3.01
9 73 6 3.36
710101 I 7’ 4.15 1 “.60
I I 77 c.M6 S 5.40
I ? 7’ 7.45 ° 3. 00
I 1 1. 41
U I 2.’-3 6
1 ( 1 I ’. 0 I. 8.60
6 74 35.,)) 1 35.0 ’)
5 13 I’. ‘0 n 12.00 19 1 1.00
1 , 71 P.77 13 11.0’)
7 74 I. 5 I ’ 2. ” )
‘ 1 73 ?.1’ II I. I
9 7 ’ 1.33 6 2. 7 5
71 3 1/7 10 77 2.51 15 2.4U
7 ? ?•M ’ S 7 .50
I’ 7’ ?.31 0
I 73 3.53 5 3.60
7 ‘ I 7 14 4 “.9)
1 7 1c
4 1 1 “ . 1 6 14
-, 7 4 ‘-,.° l 5.1 1 I ” 5.40
5 73 4. 1l 30 5 . 1 3
7 I ’ tl. ” 1’. 1.11
7 ’ ). ‘S I I G. 3
74 0.7’ 1.22
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APPENDIX B
PHYSICAL and CHEMICAL DATA
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STORET RETRIEVAL DATE 74/10/30
27H101
45 48 45.0 094 57 45.0
WAGONGA LAKE
27 MINNESOTA
1 1EPALES
3
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
72/07/02 14 00 0000
72/08/31 12 15 0000
12 15 0003
12/10/25 13 25 0000
13 25 0004
2111202
0004 FEET DEPTH
00010
00300
00077
00094
00400
00410
00630
00610
WATER
00
TRANSP
CNDUCTVY
PH
T ALK
N02&N03
NK3—N
TEMP
SECCHI
FIELD
CACO3
N—TOTAL
TOTAL
CENT
MG/L
INCHES
MICROMHO
SU
HG/L
HG/L
MG/L
23.0
7.8
14
6
750
800
8.70
9.00
224
206
0.140
0.140
0.100
0.180
0.462
1.070
20.5
9.8
10
820
850
9.00
9.10
224
220
0.160
0.370
0.170
0.380
1.060
1.200
00665 00666
PHOS—TOT PHOS—DIS
HG/L P MG/L P
DATE
FROM
TO
72/07/02
72/08/31
72/10/25
TIME DEPTH
OF
DAY FEET
14 00 0000
12 15 0000
13 ?5 0000
3??1 7
C HL PP H Y L
4
UGh
64.9J
44 • 4J
196.6J
0.345
0.710
0.695
0 • 930
0 • 890
J VALUE KNOWN TO BE IN ERROR
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STORET RETRIEVAL DATE 74/10/30
278102
45 48 30.0 094 59 57.0
WAGONGA LAKE
27 MINNESOTA
11EPALES 2111202
3 0009 FEET DEPTH
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
72/07/02 14 15 0000
72/08/31 12 25 0000
12 25 0004
- 1 25 0006
72/10/25 13 45 0000
13 45 0004
13 45 0008
00010
00300
00077
00094
00400
00410
00630
00610
00665
00666
WATER
DO
TRANSP
CNDUCTVY
PH
T ALK
N02&N03
NH3—N
PHOS—TOT
PHOS—DIS
TEMP
SECCHI
FIELD
CACO3
N—TOTAL
TOTAL
CENT
MG/L
INCHES
MICROMHO
St.)
MG/L
MG/L
HG/L
MG/L P
MGI’L P
7.2
15
12
775
800
8.90
8.93
280
204
0.100
0.170
0.090
0.170
0.466
0.935
0.341
0.645
8.2
795
8.91
208
0.160
0.280
0.945
0.655
8.4
10
800
825
8.92
9.20
203
220
0.180
0.200
0.350
0.330
0.935
1.090
0.740
0.830
10.4
825
9.20
220
0.180
0.300
1.090
0.820
11.4
825
9.20
210
0.200
0.310
1.080
0.820
23.0
20.6
?0.6
4.5
4.5
3?? 17
CHL’ PHYL
A
tJC /L
I 79.6J
j,’. 7J
53. RJ
DATE
FROM
TO
7p/07/02
72/08/31
72/10/25
TIME OEPT -4
OF
DAY FEET
14 15 0000
1? 5 0000
13 45 0000
J VALUE KNOWN TO 3E IN FRROR
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STORET RETRIEVAL DATE 74/10/30
278103
45 03 03.0 095 01 00.0
WAGONGA LAI(E
27 MINNESOTA
1 1EPALES
3
2111202
0006 FEET DEPTH
DATE
FROM
TO
7?/07/0?
7?/08/3 1
72/10/25
TIME DEPTH
OF
DAY FEET
14 30 0000
1? 40 0000
14 00 0000
32?17
CHLRPHYL
A
U G/L
153.9J
29.RJ
102. SJ
DATE
FROM
TO
TIME DEPTH
OF
DAY FEET
00010
WATER
TEMP
CE NT
23.5
20.9
4.8
72/07/0? 14 30 0000
72/08/31 12 40 0000
1? 40 0005
72/10/25 L4 00 0000
14 00 0004
00300 00077
DO TRANSP
SECCHI
MG/I INCHES
8.8
10.0
11.2
00094
00400
00410
00630
00610
00665
00666
CNDUCTVY
PH
T ALK
N02&N03
NH3—N
PHOS—TOT
PHOS—DIS
FIELD
CACO3
N—TOTAL
TOTAL
MICROMHO
SO
MG/L
MG/L
MG/L
MG/I P
MG/I P
14
775
8.90
8
795
9.00
800
9.00
15
850
9.20
274
203
206
220
220
0.060
0.170
0.170
0.140
0.200
0.050
0.350
0.20 0
0.480
0.510
0.586
0.935
0.935
1.000
1.010
0.50 1
0.620
0.625
0.780
0.770
..J VALUE KNOWN TO t3E IN ERROR
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APPENDIX C
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
ST1P T T TFVAL ) 1 7 e/l ‘I iU
279141 L 27!31A1
5 4 00.0 0q4 56 30.0
,iA( ,UN(,A LK/LIrTLE tc NOIYOHI CONN
271’-ii iS 4Tv ATEP
o/.qA(,ONGA LAPcr
C3 ‘-iwY XING 4 M I S OF KANDIYOHI
IIEPALES 2111204
0000 FFET OEPTH
( rJ c fl’) 10 fl)h71 006h
1 iTF Tjr.W !)F I -1 ‘IO F ’JO3 TOT KJFL IH N Pr-1PS—01S PhOS—t31
F’ 3 4 r4 T(1TAL TOTAL O Tr-1C)
T3 1 AY FFIT 1C./L P P4C,/L r
7?/I0/I 13 40 4.’ C1 1. 0.? ”0
7?/1 1/0 , OQ 00 ‘.7’+) 3. 0 t’.?4 1 ) 0.700
7?/12/O Ii 10 •7( ..7SM 1.4 )0 1.54 )
71/01/0 11 1 .” 0 .40O ‘. 0O ?.I )
71/O?/04 j2 O 1.3j - .- 03 .9c 5 1.7 0 1.900
71/01/10 ‘19 45 4. 0 ) 1.700 i. SO 2.200
7l/ j’ /L ’. 11 2 1 ’ 17 0
71/ ’ 15/0 I ’. 15 1.0 r’ -..1 ) i.0?3
71/05/1 11 1’ ’ ).01I a 1fl) ‘.C2 0. 140
71/0 /1fl Ii fl 4.7’h .044 J.S7’ 1.000
71/07/14 15 10 1.0l - 9. 1.450
7 / ’ /I1 13”) “.0l0 ). ,.74 :).430
73f09/G’- 3Q n.C I .ffl C. 01 0.S - 0
K VALtJF KNOI 1’ 1 TO E LESS
TH4N INDICATED
-------
STD’ ?ET ET 1EVAL r)aTr 1 /1O/3u
77 1I91 LS27Ei1 31
‘ S 0 00.0 09’. s 00.0
UNJNAMEF) ST . ri KANEJIrOHI TO LK
27 1’, A1 ATE
I lu A( UNGA
*IN(, S E3GE OF ANDIY0HI ABOVE SIP
I IEPALES 211120’.
0000 FEET DEPTH
(t 3i)
‘(Jf 7’
J0 10
00671
00 ’5
DATE
TTMF
‘1F ’T-i
N( ,7 N1)
1)1 KJ’L
i 1—N
p- ’OS—O1S
PHO’,—JQT
F’ O
0
‘i— T T L
‘
T )TAL
OUT HO
TO
)AY
1’/L
‘1 (,t
• W’/L
• i(,/L P
M&/L
7?/l(:/1S
1300
‘. 7
?.C0
J.?1
O.2i 0
0.33’
7?/1l/0S
OR
40
.71 1
1. (i
0.?9(
0.390
O.11U
71/01/10
09
10
1. e +f
I.1 ’0
0. ?7
1.100
71/04/16
11
19
‘i1 ”
7 .S 0
0.03?
0. lbO
0.23)
71/05/0k
11
00
(‘.1
1.700
.012
0.300
0.345
71/ ) /I
09
‘ C
i.04
] . Q(
.O?1
0.112
0.?45
71/06/10
H
00
..07?
1•7n
J. ?U
0.R40
1.u OO
71/ ’7/14
13
Ofl
“.01”
•3.4’-)0
3 6
0.1 O
0.? 0
7l/O ( /1I
11
fl
.Cj )r
‘ .0S?
0.Llo
0.3’.
73/•)’3/0 ,
70
)0
•7
,. s(
0.10 5
0. ’ .10
ViLU l
-------
STO ET RETQ1FV L ‘ T 74/1 /1U
7RIC1 LS?7r31C1
4 JI 00.0 C’ . 5h 30.0
UNN thJ) SI’ l(t NI.lIYOHI TO LK
?7 , aT ATE.
T/4AGONGA LAKE
CO ‘- W( XI G S OF KANDIYOHI BELO SW
1flE ALES 2111204
4 0000 FEET DEPTH
f’Th1 ) 0)671 0 0e6 5
r) TE TIM OF ’t-i N - 1O3 TOT KJ L F - 3— PriOS—DIS PHO TOT
FROM OF \j—T’ TAL N T’)T L u r io
TO DAY FFET it,/L Mc,/1 1 ,/L P MG/L
72/10/1 5 13 fl 4.5Ju 7.9 U 0.1 ,0 0.?M0 .U00
72/I 1/OS O fl ‘.?JO I . 0(, ). 1C 0. 95
77/12/09 Ii IS i. .+fl .P’ u 2.31)0 ?.4 00
73/03/10 09 20 l.7’O ‘.. 1jr 1.470 1.06 5 1.25)
71/(’4/1 13 10 t.r i ‘).04 0.650 o.7 50
73/O /0(’ 11 PD L. ’ ‘.70 0 U.’ 50 0.700
7i/os/1 10 45 I. L’) .00 ).fl3P 0.965 1.100
7 /O6/1U Ii 10 L..1 ‘I 4. 7D’1 1.?’St, ?.20C 2. 200
71/07/16 13 It. .1 ) ) .IOti 1.05 11 ‘. 30 3.200
71/O /1I 11 55 3.5’1 S.’1 3.100
3.000 3.300
73/ 1)9/04 19 45 1 .IutJ
-------
ST FT ETR1EVt I. ) T’ 7L./j i/fl
77’ilifl LS27 1D1
4c 05 00.0 09’4 5% 30.0
1J NAMED t” I [ 0 Lr ELEANOR OUTLE
27 15 t&TwATLR
T/QAGONC,A LAKE
CO HWY -3r 1}C, NE OF LK ELEANOR
I 1EPALES 2111204
0000 FEET DEPTH
O0’-71 O0ff 5
r)ATF F1M 1W 1-1 • 0 jO3 Tu [
-------
ST ET ETP1EVAL ,)ATr 74/10/30
!7H1E2 LS271-31E2
45 0’ 00.0 095 02 00.0
DETCH S FROM 1LMAN
7.5 ILMA’
T/qAGONGA L P4 E
AING s EDGE OF WILMAR BELOSTP
1IEPALES 2111204
0000 FEET DEPTH
00f 2S ‘)Uf ’I O 0067)
DATE T1M DFPT -4 ND? .NO3 T J L NH3-F 1 PHOS—DIS PHOS—TOT
FPOM OF N—TOTt L N T’)TAL OPTHO
TO PAY FcET ‘4c,/L iG/L Mr,/L M( /L P M&/L P
77/10/l 1’. 10 11.001) 1. .50 0.550 2.525 S.400
7?/11/0S 09 15 f.f .”O p.700 1.200 2.100 5.500
7?/1 ,’0 11 11.7(0 3.500 0.730 5.325 7.400
73/01/0 14 30 7 1. OcJJ ?.400 0.705 5. ( 0 6. 300
71/0?/04 13 00 0.770 7.000 H. IOfl
73/01/10 09 00 l .4 J l.P90 4. S0 6.500
71/04/14 1? 45 ?7. Ot ,G ‘ . ))0 0.430 6.90C, &.100
71/05/0”. 14 45 . ‘V) 2.(-.OO O.’- l) 5.500 6.000
73/’ 5/1Q 10 10 ‘.‘+fl O O. 30 4.700 6.700
7 1/OtS/1(’ 11 4 1. S0 •47 E. .4 00 7.300
71/07/14 14 00 l.”Q O 0.370 7.300 9.000
71/0’ /11 14 45 L’.400 4. s00
-------
STOPET RETRIEVAL DATE 74/10/30
278151 *5278151 P012869
45 06 30.0 095 02 00.0
W ILLMAR
27163 7.5 WILIMAR
1/LAKE WAGONGA
UNNAMED DITCH
LIEPALES 2141204
4 0000 FEET DEPTH
00630 00625 00610 00671 00665 50051 50053
DATE TIME DEPTH N02&N03 TOT KJEL NH3—N PHOS—OTS PHOS—TOT FLOW CONDUIT
FROM OF N—TOTAL N TOTAL ORTHO RATE FLOW—HGD
TO DAY FEET MG/L hlG/L MG/I MG/L P MG/L P INST MGD MONTHLY
73/01/30 00 00
CP(T)— 23.000 3.000 0.370 6.100 6.400 2.160 1.870
73/01/31 24 00
73/02/27 00 00
CP(T)— 2o.000 12.000 0.190 6.600 2.150 2.010
73/02/27 24 00
73/03/27 00 00
CP(T)— 21.000 ?.500 0.055 5.600 6.800 2.290 2.190
73/03/2R 74 00
73/04/29 00 00
CP(T)— 25.000 2.900 0.038 6.375 7.000 1.820 2.190
73/04/29 24 00
73/05/30 00 00
CP(T)— 20.400 0.100K 0.048 5.100 6.700 2.610 2.350
73/05/30 24 00
73/06/26 00 00
CP(T)— 19.600 0.800 0.160 6.200 7.600 2.220 2.200
71/06/26 24 00
73/07/31 00 00
CP(T)— 20.000 0.100K 0.064 4.400 8.550 2.310 2.170
71/07/31 24 00
73/09/04 00 00
CP(T)— 18.800 4.180 2.310 2.390
73/09/04 74 00
71/10/04 00 00
CPU)— 24.000 6.350 0.140 8.200 8.800 2.700 2.420
73/10/04 24 00
73/10/10 00 00
CP(T)— 23.000 7.000 0.120 6.200 9,000 2.910 2.610
73/10/30 ?4 00
73/11/29 00 00
CPfl— 27.000 0.500K 0.130 6.100 8.400 2.700 2.370
71/11/29 24 00
73/12/30 1 00
CPU)— 32.000 2.100 0.110 7.900 9.300 1.400 1.850
73/12/31 I? 00
K VALUE a NOWN TO 8E LESS
THAN INDICATED
-------
ST)P T ‘ ErPTFv L F)ATR 7 /1t ,/ Cj
06 10.0 09 02 00.0
ILLMAk
27)f 7,5 W1LLM
T/LAr r WAGUNGA
JNHAM’ t) DI ICH
1c - ALES
4
2141204
0000 FF T DEPTH
74/0!/7U )() 00
( ‘- C I) —
74/01/? - ?4
‘•‘ .1 OC)
•)A c
c
TI)
AS27FU51
TI F nFL)1r l
•) 1:-
L), Y F FT
•‘ c) 7 Nr
— T .) T L
P0 1 ? 6Q
(0 ’5
ior JFL
• C 1 0
r’i-l 1-N
1 UT I’
/ L
•
0O’71
P -i0S--I)jS
OPT HI)
I r,/L P
7. 7ri ,
50051
P-4U-—TOT FLOW
RArE
J NS I tIG )
50053
CONOU IT
FLOw —M(,1 )
MONTHLY
1 • 340
C
.
-------